Snake hole

Snake-holing. Blasting method for removing deeply buried boulders or rocks. It consists of digging a hole under the boulder and placing a Dynamite charge immediately below it. As the expl charge is confined by the earth, when detonated, it will exert sufficient force on the... 

Some blasters prefer to use just enough expl to roll-the boulders out by snake-holing, and... 

Sohlenbohrloch = snake hole 290 solid propellant rocket 292... 

In the next few minutes they are able to slowly climb up the wall of the hole as they slip, slide, and curse. When they finally emerge from the hole they begin running again. The wet muck flys from their bodies like sparrows fleeing a nest of snakes. 

Watch out for his venom," the boy said. But even though the alchemist had put his hand in the hole, and had surely already been bitten, his expression was calm. "The alchemist is two hundred years old," the Englishman had told him. He must know how to deal with the snakes of the desert. 

According to an ancient piece of Chinese folklore, before an earthquake, hibernating snakes come out of their holes, sometimes freezing to death in the cold. 

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